PHYSICS LAB EXPERIMENT : Uniform Circular Motion

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The uniform circular motion is the motion of an object when in a circle moving at constant speed. When an object is moving in a circle it constantly change its direction but if it is undergoing unifor... m circular motion it moves in a constant speed. In this laboratory the uniform circular motion is being studied and through the lab Newton’s second law for centripetal and centripetal force can be verified. Studying the Newton’s second law, a plastic ball will be attached to a spring and a cord is rotated in uniform circular motion and since the spring constant and displacement of the spring can easily be determined, the centripetal force can be calculated. With spring constant, displacement of the spring and the centripetal force known, also the tension in the cord can be determined. From, the experiment there raised several verification that tangential acceleration guides the velocity of the object in circular motion while the radial components guides the change on direction and this enables that an object moves in a circular motion. This balance between the tangential components of acceleration and radial components of acceleration results in a tension to the cord plus the spring on which the object is moving in a circle. The resulted centripetal acceleration was 67.6 m/s2, the tangential velocity was 7.35 m/s and centripetal force was 0.676 N. The tension force was 0.676 N if the body was moving fast enough and if it was moving slowly then factoring the force due to gravity it was 0.683 N. Results and analysis Spring Constant Data Suspended Mass: 0.100 kg Spring Displacement 0.29 m Spring constant 0.1×9.81/0.29 =3.38 N/m Uniform Circular Motion Data Mass of Ball: 10.0 g Un-stretched Spring Length: 10.0 cm Total Cord Length: 0.5 m Stretched Spring Length: 30.0 cm Radius of Circle before Displacement ___0.5 m +0.1 m = 0.6 m Radius of Circle after Displacement ___0.5 m +0.3 m = 0.8 m [Show More]

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